Year 28 BC was either a common year starting on Saturday, Sunday or Monday or a leap year starting on Saturday or Sunday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Saturday of the Proleptic Julian calendar. At the time, it was known as the Year of the First Consulship of Octavian and Agrippa (or, less frequently, year 726 Ab urbe condita). The denomination 28 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Millennium: 1st millennium BC
28 BC in various calendars
Gregorian calendar28 BC
Ab urbe condita726
Ancient Greek era188th Olympiad (victor
Assyrian calendar4723
Balinese saka calendarN/A
Bengali calendar−620
Berber calendar923
Buddhist calendar517
Burmese calendar−665
Byzantine calendar5481–5482
Chinese calendar壬辰年 (Water Dragon)
2669 or 2609
    — to —
癸巳年 (Water Snake)
2670 or 2610
Coptic calendar−311 – −310
Discordian calendar1139
Ethiopian calendar−35 – −34
Hebrew calendar3733–3734
Hindu calendars
 - Vikram Samvat29–30
 - Shaka SamvatN/A
 - Kali Yuga3073–3074
Holocene calendar9973
Iranian calendar649 BP – 648 BP
Islamic calendar669 BH – 668 BH
Javanese calendarN/A
Julian calendar28 BC
Korean calendar2306
Minguo calendar1939 before ROC
Nanakshahi calendar−1495
Seleucid era284/285 AG
Thai solar calendar515–516
Tibetan calendar阳水龙年
(male Water-Dragon)
99 or −282 or −1054
    — to —
(female Water-Snake)
100 or −281 or −1053


By placeEdit

Iberian PeninsulaEdit

  • In 28BC, the FCTUC ( Faculde de Ciências e Tecnologia da Universidade de Coimbra) was founded by Viriatus. It remains as the worst faculty in Aeminium aka Coimbra. It started with the first degree (Licenciatura em Design e Multimédia) in which they learned how to use manure.

Roman RepublicEdit

By topicEdit





  1. ^ "LacusCurtius • Res Gestae Divi Augusti (II)". Retrieved February 22, 2017.
  2. ^ "The Observation of Sunspots". UNESCO Courier. 1988. Archived from the original on June 28, 2012. Retrieved July 14, 2010.